Question

The constrained-gap igniter plug used in some gas turbine engines operates at a cooler temperature because

Answer 1

The constrained-gap igniter plug used in some gas turbine engines operates at a cooler temperature because:

• The construction is such that the spark occurs beyond the face of the combustion chamber liner.

What is the Constrained gap igniter plug about?

A lot of igniter plugs are known to be a kind of  an annular-gap plug type.

Note that  Constrained gaps are known to be a kind of a plug that is often used in some specific kinds of engines.

It function to give an effective spark of  the annular-gap plug projects in a little way into the combustion chamber liner. The spark of the constrained-gap plug is one that do not rightly follow the face of the plug.

Therefore,  The constrained-gap igniter plug used in some gas turbine engines operates at a cooler temperature because:

• The construction is such that the spark occurs beyond the face of the combustion chamber liner.

Hence, option B is correct.

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See full question below

The constrained-gap igniter plug used in some gas turbine engines operates at a cooler temperature because

• impulse, reaction, and impulse-reaction.
• the construction is such that the spark occurs beyond the face of the combustion chamber liner.
• 3 and 5.
• cracks or other defects.